催さい涙るい弾だんさいるいだんMeanings1nountear-gas bombA canister or projectile that releases tear gas, used for riot control or military purposes.警けい察さつはデモ隊たいに向むけて催さい涙るい弾だんを発はっ射しゃした。The police fired tear-gas bombs at the demonstrators.